Burner



T. E. POTTS Aug. 11, 1925.

BURNER Filed April 7. 1924 :nrE.

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THOMAS E. POTTsI Patented Aug. 11, 1925.

1,549,682: PATENT oral-on.

A -.3 3 0 NQELES, A IFO N A,-

BURNER.

Application filed. April 7, 1924. Serial No; 704,705.

Toall whom it may concern:

Be it'known that I, THOMAS E. Form, a citizen of the United States, residing at Los Angeles, inthe county of Los Angeles and State ofGalifornia, have invented a new and useful Burner, of which the following is a specification.

This invention relates to devices used in stores and furnaces for generating heat.

One ofthe objects of this invention is to provide a clevice with'anoverhead air supp y- Another object is to provide a device in.

which and through which gaseous as wellas liquid fuel can-beh'andled, an overhead a1r supply being arranged so that the air passes equally. well overimpassing gaseous and liquid fuel;

Another object is to provide a device with fully sealed-off fuel supply connections, by which fuel can be injected into the device before air can miX with the fuel.

Another object is to provide proper fuel and air passage controlling and adjusting means.

()ther objects will appear from the following description and appended'claims as wellas fromthe accompanying drawing, in which- Fig. 1 is a longitudinalsectional View of a burner-box of a simple construction, illustrating gaseous and liquid fuel connections, and showing removable and adjustable shutters and battles.

Fig. 2 is a front elevation of the boX in Fig. 1, having the front and top shutterremoved.

Fig. is a fragmentary detail sectionalview on line 3-3 of'Fig. 2, illustrating a needle-valve for a gas-jet. V

Fig. 4 is-a top plan view of the adjustable top shutter, in partly closed position.

Fig. 5 is a fragmentary diagrammatic i1 lustration of an arrangement of a device within a range or stove, including a chimney.

The common gas burners for stoves and ranges are generally designed so that gas is discharged into a jet-like and tubular member through which air is drawn into the burner together with the gas-injection.

Hotels, restaurants, and other establishmerits, catering to large numbers of people have special stoves and ranges with proportionally large burners, whether gas or liquid fuel is used. Independent burners for gas and other burners for liquid fuel are very oftenprovided to enable such places to furnish meals regardless ofthe lack of fuel, either, gaseous or liquid fuel.

Burners, designed for burning liquid fuel are generally not suitable for burning gas.

A common type of burner for burning liquid fuel is illustrated in Figs. 1, 2 and5, inits general'outline, though in theseparticular illustrations the burner is designed toburn-gaseous or liquid fuel. In this type of burners, the necessary airis allowed to enter the burner from the top or over-the in-passingfuel, to mix with the fuel within the burner, the in-passingifuel being directed in the general line of: the arrow 6, while them-passing air is directed in the general line of; the arrow. 7 from over-3 head in relation to the fuel, see Fig. 1. In burningliquid fuel, the'fuelis generally. injected into a burner under pressure, but; the main pan-8 serves to hold the fuel inits liquid state, while the. air passes. over this. fuel in=the pan. The liquid fuel ispassed into the burnerby way of the tube 9, to bei controlled by avalve in thepipe line 9, the valve being not shownin the drawing, since any-common valve may be used for thispurpose. The liquid fuel is ignited in the pan 8, to generate the required heat for stoves, furnaces, and ranges. The burning fuel normally draws in air through the overhead air funnel 10.

To make this common-type liquid-fuelburner useful for burning gaseous fuel, fundamental changes have to be made. The Figs. 1, 2 and'5 illustrate a device designed to allow the use ofgaseous andliquid fuels. The termination 11 of the supply connection 9ufor the liquid fuel'is similarly positioned near; the front edge-or end 12 of theburner pan 8 as the termination 13 of the gas supply, the gas discharge or termination being illustrated in Fig. 3, while the liquid fuel discharge or termination is illustrated in Fig. 1.

A body in form of a manifold is provided at the front end of the burner plate or pan 8, as illustrated in Figs. 1, 2 and 3, for supplying gas to a required number of gas discharge outlets. Each of the gas discharge outlets 13 is preferably provided with an adjustable needle-valve 15. 16 designates a main gas-supplying connection, as indicated in Fig. 2, which may b provided with a main controlling valve, not shown in the drawing, as well as pointed out with reference to the main supplying connection 9 for the liquid fuel.

Either gaseous or liquid fuel may in this manner be discharged into the burner, to mix with air within the burner.

However, gas is generally not discharged with sufficient pressure as that it would draw air into a burner of this type. A chimney 17 is therefore preferably provided, as indicated in Fig. 5, or, in other words, a burner of this type is preferably used in stoves, furnaces, or ranges that have a chimney. A portion of a range or stove is indicated at 18 in Fig. 5, illustrating the combination and arrangement of a burner (roughly out-lined at 19) within the range, and a chimney, extending upwardly from the range.

Plates 20 and 21 are preferably provided over the top of the air funnel 10. These plates are provided with perforations to come into aligned position when fully open while the one plate may be shifted in relation to the other plate to allow an adjusting of the air passage into the burner through the funnel, as illustrated in Fig. i.

The partition or baffle plate 22 is made removable and thereby adjustable, so that the space between the baffle 22 and the pan 8 may be maintained in proper proportion to the particular burner.

The front shutter 23 is also made removable. This is for the purpose of providing a simple casting, and for making the burner easily accessible. The front shutter 23 and the top plates 20 and 21 are not shown in Fig. 2, so that the baffle 22 may be seen through the open front of the burner.

Of course, it is immaterial, whether the gas-manifold is made integral with the burner or detachable, the important point being that the manifold is designed so that the connection for the liquid fuel can be provided to receive overhead air supply equally well with the gas connections.

Having thus described my invention, I claim:

1. In a burner of the class described, a pan having front, rear, and side walls projecting upwardly from the bottom plate, conduit for liquid fuel terminating within the front wall of the pan, a gas manifold disposed along the front wall of the pan and having independent discharge outlets extending through the said front wall of the pan adjacent of the conduit for the liquid fuel, and overhead air supplying means over the front end of the pan and over the fuel discharge.

2. In a burner of the class described, a pan having front, rear, and side Walls projecting upwardly from the bottom plate of the pan, means by which liquid fuel can be passed into the pan through the front wall of the pan, and a gas manifold disposed along the front wall and having a curved portion disposed at a point where the liquid fuel is to be passed through the front wall and having independent discharge outlets extending through the said front wall at the level near the point where the liquid fuel is passed into the pan.

3. In a burner of the class described, a pan having front, rear, and side walls proecting upwardly from the bottom plate of the pan, a gas manifold disposed along the front wall having discharge outlets extending through the said front wall, and a conduit for liquid fuel extending through the front wall in nearly the same level with the outlets of the gas manifold.

4. In a burner of the class described, a pan having front, rear, and side walls projecting upwardly from the bottom plate of the pan, a gas manifold disposed along the front wall having discharge outlets extending through the said front wall and having a curved portion by which the said front wall is left free of the manifold at a point in the level of the said outlets, a conduit for liquid fuel extending through the front wall in nearly the same level with the said outlets atthe said point wherev the front wall is left free of the manifold, a center bafile plate removable disposed between the said side walls of the pan with its lower edge spaced above the bottom of the pan and spaced from the said front wall, and air controlling means over the front end of the pan including the front wall with the side walls and the center baffle plate to form an over head air control at an equal distance over the said outlets and conduit.

In testimony that I claim the foregoing as my invention I have signed my name.

THOMAS E. POTTS. 

